Immacolata Borelli, whose family are major players in the Camorra - a crime network - goes to Britain to look after her gangster brother who is wanted for multiple murders back home in Naples. From London, Immacolata phones a senior Carabinieri investigator and tells him she is prepared to collaborate with justice - to betray her own family. But the Borellis will use any tactic and any person in a brutal struggle to keep control of their territory in the city, and to prevent her from giving evidence against them. Even her boyfriend and his life.